A regional wind power plant group forecasting and intermittent quantitative depicting method and device

A wind farm group and intermittent technology, applied in data processing applications, instruments, biological neural network models, etc., can solve the problem of low accuracy

Active Publication Date: 2019-06-28
GUANGDONG POWER GRID CO LTD +2
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Problems solved by technology

[0005] The embodiment of the present application provides a method and device for regional wind farm group forecasting and intermittent quantitative characterization, which solves th

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  • A regional wind power plant group forecasting and intermittent quantitative depicting method and device
  • A regional wind power plant group forecasting and intermittent quantitative depicting method and device
  • A regional wind power plant group forecasting and intermittent quantitative depicting method and device

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Embodiment Construction

[0066] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0067] This application designs a method and device for regional wind farm group forecasting and intermittent quantitative characterization, which solves the problem that there is no way to use specific parameters to quantitatively describe the intermittent nature of wind farm groups in the prior art, and there is a technology with low accuracy question.

[0068] ...

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Abstract

The embodiment of the invention provides a regional wind power plant group forecasting and intermittent quantitative depicting method and device. The intermittent parameter of the wind speed can be described based on the abrupt change duty ratio of the wind speed; then, a Pearson cross-correlation analysis method is used for carrying out clustering division on the wind speed abrupt change duty ratio time sequences of different wind turbine generators; wind turbine generators with strong correlation are gathered into a virtual unified scheduling unit; determining the optimal forecast length with high predictability in the virtual unified scheduling unit by utilizing a Pearson autocorrelation analysis method; Finally, the BP neural network is used for forecasting the forecast wind speed abrupt change duty ratio of the wind power plant group in the future area, intermittent quantitative description of the wind power plant group in the future area is completed, and the technical problem that in the prior art, a mode of quantitatively describing the intermittence of the wind power plant group through specific parameters does not exist, and the accuracy is not high is solved.

Description

technical field [0001] The present application relates to the field of wind power technology, in particular to a method and device for regional wind farm group forecasting and intermittent quantitative characterization. Background technique [0002] In recent years, wind power has developed rapidly and has taken an increasing proportion in the power system. However, due to the intermittent nature of the wind, the large-scale integration of wind power will have an impact on the stability and safe operation of the power grid. Therefore, the intermittent research on large-scale wind power can provide more detailed decision-making reference information for the power system, which is of great significance to the safe operation of the power system after the wind power is connected. [0003] At present, the existing research results mainly focus on the intermittence of wind speed. Some scholars have given a qualitative definition of wind speed intermittency: it refers to the near...

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06G06N3/04
Inventor 刘嘉宁万杰董锴姚坤王琦郭钰锋
Owner GUANGDONG POWER GRID CO LTD
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